Home / 388,166,443.56-535,672,281.78-211,955,662.44

Finding the Fourth Proportional to 388,166,443.56, 535,672,281.78 and 211,955,662.44

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Solution

The fourth proportional to 388,166,443.56, 535,672,281.78 and 211,955,662.44 is: 292,500,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,166,443.56 : 535,672,281.78 = 211,955,662.44 : x
  2. Step 2: Convert to fraction form
    388,166,443.56/535,672,281.78 = 211,955,662.44/x
  3. Step 3: Cross multiply
    388,166,443.56x = 535,672,281.78 × 211,955,662.44
  4. Step 4: Simplify right side
    388,166,443.56x = 113,538,773,335,426,240
  5. Step 5: Solve for x
    x = 113,538,773,335,426,240/388,166,443.56
  6. Step 6: Final answer
    x = 292,500,228.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.